85240590 has 16 divisors (see below), whose sum is σ = 204577488. Its totient is φ = 22730816.

The previous prime is 85240583. The next prime is 85240591. The reversal of 85240590 is 9504258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85240591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420647 + ... + 1420706.

It is an arithmetic number, because the mean of its divisors is an integer number (12786093).

Almost surely, 2^85240590 is an apocalyptic number.

85240590 is an abundant number, since it is smaller than the sum of its proper divisors (119336898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85240590 is a wasteful number, since it uses less digits than its factorization.

85240590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841363.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 85240590 is about 9232.5830621771. The cubic root of 85240590 is about 440.0974130048.

The spelling of 85240590 in words is "eighty-five million, two hundred forty thousand, five hundred ninety".